Diagonal sorter



FIG. 1 is a front elevational view of a diagonal sorter showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof, with the left side being a mirror image; and

FIG. 5 is a front perspective view of my design on an enlarged scale; 

The ornamental design for a diagonal sorter, as shown and described. 